Windows Server 2008 DatacenterWindows Server 2008 R2 Datacenter is optimized for large-scale virtualization on small to large server systems and for workloads that require the highest levels of scalability, reliability, and availability to support large, mission-critical applications

With unlimited virtualization use rights and a hypervisor-based virtualization technology, Windows Server 2008 R2 Datacenter provides the flexibility and cost savings to easily run large numbers of virtualized Windows Server instances.Windows Server 2008 R2 Datacenter supports the memory and processing needs of large-scale, business-critical workloads such as ERP, databases, server consolidations, and custom and line-of-business applications.